Eagle Fighting Championship (EFC), commonly referred to as Eagle FC, is a Russian mixed martial arts promotion company established in 2020 by former UFC Lightweight Champion Khabib Nurmagomedov. It was renamed to Eagle Fighting Championship (EFC) after Nurmagomedov bought Gorilla Fighting Championship (GFC) for $1 million.

Khabib Abdulmanapovich Nurmagomedov is a Russian former professional mixed martial artist who competed in the Lightweight division of the Ultimate Fighting Championship (UFC). He was the longest-reigning UFC Lightweight Champion ever, having held the title from April 2018 to March 2021. With 29 wins and no losses, he retired with an undefeated record. Nurmagomedov is widely considered to be among the greatest mixed martial artists of all time, and was inducted into the UFC Hall of Fame on June 30, 2022.